Glass wiper

ABSTRACT

The present invention provides a windows wiper, which comprises a base body with a transverse portion and a vertical portion, a wiping board, a bottom board fixed with a scraping bar; the middle portion of the wiping board is rotatably connected with a front end of the transverse portion through a shaft; the bottom board is disposed under the wiping board. The windows wiper of the present invention has the two functions of scraping and wiping. The number of components of the windows wiper is small, and the structure is simple too. Furthermore, when the scraping bar is used to scrape the glass or the wiping towel on the wiping board is used to wipe the glass, the direction of operation is parallel to the vertical portion of the base body, which makes the operation convenient.

RELATE APPLICATION

This application is a national phase entrance of and claims benefit toPCT Application for a windows wiper, PCT/CN2012/000149, filed on Feb. 7,2012, which claims benefit to Chinese Patent Application 201210016736.9,filed on Jan. 19, 2012. The specifications of both applications areincorporated here by this reference.

FIELD OF THE INVENTION

The present invention relates to a kind of cleaning apparatus for dailyuse, in particular, to a kind of windows wiper which is used for windowscleaning.

DESCRIPTION OF THE PRIOR ART

There are mainly two kinds of traditional windows wipers: One is thewindow brush which consists of a brush holder and a wiping towel fixedon the brush holder; and the other is a scraping tool with a flexibleadhesive tape mainly used for scraping and cleaning the glass, e.g. aChinese patent CN200998226Y with the title “A Windows wiper” whosepatent No. is ZL200720004365.7, and another Chinese patent CN200960089Ywith the title “A Hydro-jet Window Brush” whose patent No. isZL200620108901.3. When cleaning the glass, the wiping towel and thescraping tool with the flexible adhesive tape are used together, with asprinkling can for spraying water or cleaning fluid equipped.

The apparatus disclosed in the preceding patents only functions inwiping, that is, the operator needs to carry along three toolsindependent from each other when wiping the glass. It is not onlyinconvenient but also probable for the operator to forget carrying oneof the tools, resulting in low work efficiency.

As an improvement, a glass cleaning tool, with the functions of bothscraping and wiping, is therefore invented, e.g. a Chinese patentCN2794409Y with the title “A Double-used Window Brush for WaterDraining” whose patent No. is ZL200520101846.0, which comprises a brushholder provided with a structure of hollow middle part. Such structureis the hole for water draining that can be connected to the watersource. Two supporting legs are extended from the holder, with asupporting shaft suited by a wiping towel fixed on one and a wiper bladeinstalled on the other. The wiper blade is clamped on the wiper bladeseat paralleled with the supporting shaft through the fixation of pressblade and supporting legs. The utility model can be connected to thewater source with the function of wiping and scraping for convenientuse.

During the supporting shaft with a wiping towel is used by the apparatusfor cleaning the glass, the brush holder in the hand should be leanedwith a certain angle to avoid the interference against the glass by thewiper blade. As the wiping angle between the brush holder and the glassand that between the supporting shaft and the glass are not parallel,the hands will feel uncomfortable. In addition, it is inconvenient andunreasonable to connect any external water pipe and tap for waterspraying.

In conclusion, the available glass wiping tools with double uses can befurther improved.

SUMMARY OF THE INVENTION

It is an object of the present invention to provide a windows wiper withthe functions of scraping and wiping. When these two functions arealtered, the angles of the windows wiper can be switched, the windowswiper has equally comfortable operation in each kind of function, andthe windows wiper has a reasonable structure design.

For achieving the above stated object, the windows wiper comprises: abase body which is convenient to hold with hands, including a transverseportion and a vertical portion; a wiping board used for fixing a wipingtowel, the middle portion of the wiping board rotatably connected with afront end of the transverse portion through a shaft, when the wipingboard rotates backward till the upper surface of the transverse portionresisting the bottom of the wiping board, the wiping board appearing tobe horizontal; a bottom board disposed under the wiping board, the frontend of the bottom board fixed with a scraping bar, when the wiping boardrotates backward to be horizontal, the scraping bar extending forwardoutside of the front edge of the wiping board.

As a preference, the bottom board can move forward and backwardrelatively to the wiping board, and can be limited under the wipingboard in a forward position and a backward position as follows: when thebottom board moves forward relatively to the wiping board and is limitedin the forward position, the scraping bar extends forward outside of thefront edge of the wiping board; when the bottom board moves backwardrelatively to the wiping board and is limited in the backward position,the scraping bar retracts backward hiding under the front edge of thewiping board. Accordingly, when the scraping bar is required forscraping the glass, the scraping bar can move forward and be limited inthe forward position for extending outside of the front edge of thewiping board; when the wiping towel out of the wiping board is requiredfor wiping the glass, the scraping bar can move backward and be limitedin a backward position for making the scraping board retracted. In thisway, no interfere will be caused by the scraping bar to the glass whenwiping.

As a preference, the wiping board is provided with two C-shaped throughholes with their open mouths in the same direction, the two C-shapedthrough holes are disposed in distance on the left and right sidesrespectively, and the bottom board is provided with two upward-extendedlocating columns which respectively pass upward through thecorresponding C-shaped through holes and connect with a stoppingelement, to hang the bottom board below the wiping board; at the sametime, each locating columns can glide along the corresponding C-shapedthrough hole, when each locating column moves to the front portion ofthe corresponding C-shaped through hole, the scraping bar on the bottomboard will extend forward outside of the front edge of the wiping board,when each locating column moves to the rear portion of the correspondingC-shaped through hole, the scraping bar on the bottom board will retractbackward hiding under the front edge of the wiping board. Such design isconvenient to move and limit the wiping board to a certain position. Thewiping board can be pushed during operation. When the locating column isglided along C-shaped trough in the groove in the front or rear portionof the C-shaped through hole, the locating column is warded off by thefront and back walls of the C-shaped through hole to complete theposition limitation, which is quite convenient and practical.

As a preference, the upper surface of the wiping board is provided withtwo recesses, the two C-shaped through holes are respectively located onthe bottom of each recess, and the two stopping elements arerespectively located in each recess. As the stopping elements are hidedin the corresponding recess, the stopping elements will not extend outof the upper surface of the wiping board, which ensures that the wipingtowel will be jacked up by the stopping elements and the surface of thewiping towel can be kept smooth. The stopping elements can be eitherlocating nuts or rings.

As a preference, a torsional spring is disposed round the shaft which isused to make the wiping board turning backward and being horizontal,when the wiping board is turned forward being vertical, the torsionalspring can keep the wiping board stuck to the wiped glass surface allthe time. The torsional spring has the following two functions: firstly,the torsional spring can keep the wiping board to the horizontal state,so that the scraping bar can be kept over the scraped glass surface andthe scraping bar can scrap and wipe the glass in a more effective way;secondly, the torsional spring can make sure that the wiping board isstuck to the wiped glass surface, so that the wiping towel can wipe theglass more effectively.

As a preference, the middle of the bottom surface of the wiping board isprovided with an inserting portion which extends downward, the front endof the transverse portion of the base body is provided with a gap forthe inserting portion to insert downward, the inserting portion ispivoted with the base body locating in the gap through the shaft. It isa detail structure of a wiping board rotatably connected with the basebody. Such a rotating connection can be either assembled simply, or beachieved by other available ways.

As a preference, one end of the torsional spring is leaned against thebottom surface of the transverse portion and the other end is inserteddownward in an inserting hole on the inserting portion. As one end ofthe torsional spring is inserted into the inserting hole on theinserting portion, the end of the torsional spring can move with thewiping board.

As a preference, the wiping towel surrounds the wiping board, which isconvenient to fix the wiping towel on the wiping board.

As a preference, a sprayer is further disposed, and the vertical portionof the base body is fixed on the top of the sprayer. The sprayer is usedfor providing cleaning fluid or water for the glass without extraconnection to water source. In addition, the sprayer can also be used asa grip of the windows wiper for convenient operation.

As a preference, the bottom of the vertical portion on the base body isprovided with an annular locating hole which is installed around themouth of the sprayer and limited by a lid on the mouth of the sprayer.Such design is convenient to make the base body and the sprayer beingconnected with each other.

Compared with the prior art, in the present invention, the windows wiperis provided with the scraping bar and the wiping board with the fixedwiping towel, which may perform the functions of both scraping andwiping at the same time; in addition, the windows wiper has fewportions, thereby resulting in a simple and reasonable structure; whenthe wiping board is rotated backward to the horizontal state, the wipingboard can not be continuously rotated backward after the bottom surfaceof the wiping board contacts with the upper surface of the transverseportion. When the wiping board is rotated forward to the vertical state,the wiping towel in the wiping board can be used for wiping the wipedglass surface. The vertical portion of the base body can be griped bythe operator so that the action direction can be basically parallel withthe vertical portion of the base body when using the scraping bar toscrap the glass or using the wiping towel in the wiping board to wipe,thereby resulting in a convenient operation; besides, the wiping boardcan be rotated against the base body. As the angle between the glass andarms will keep changing during wiping the glass with the wiping towel,the shaft can ensure that the wiping board will keep stuck with theglass, regardless of the angle change of the arms, avoiding tiredness onwrists. If the windows wiper is with the shaft, the wrists should berotated to keep the wiping board stuck to the glass which will causetiredness on wrists.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a working lamp in accordance with anembodiment of the present invention when a housing and a seat are in ashut state.

FIG. 1 is a perspective view of a windows wiper in accordance with theembodiment of the present invention when the wiping board is inhorizontal state.

FIG. 2 is a perspective view of the windows wiper of FIG. 1 without thesprayer.

FIG. 3 is a perspective view of the windows wiper of FIG. 2 when thebottom board moves forward showing the locating columns in the frontportion of the C-shaped through hole.

FIG. 4 is a sectional view of the windows wiper of FIG. 2 with thewiping towel surrounding the wiping board.

FIG. 5 is a perspective view of the windows wiper of FIG. 2 when thebottom board moves backward showing the locating columns in the rearportion of the C-shaped through hole.

FIG. 6 is a perspective view of the windows wiper of FIG. 1 when thewiping board is in vertical state.

FIG. 7 is a perspective view of the windows wiper of FIG. 6 without thesprayer.

FIG. 8 is a perspective view of a bottom board of the windows wiper inaccordance with the embodiment of the present invention.

FIG. 9 is a perspective view of a wiping board of the windows wiper inaccordance with the embodiment of the present invention.

FIG. 10 is a perspective view of a base body of the windows wiper inaccordance with the embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

To enable a further understanding of the innovative and technologicalcontent of the invention herein refer to the detailed description of theinvention and the accompanying drawings below:

FIG. 1 and FIG. 10 show a preferred embodiment of the present invention.

The windows wiper comprises:

A base body 1 convenient to hold with hands is provided, as shown inFIG. 10, consisting of a transverse portion 11 and a vertical portion12;

A wiping board 2 used for fixing a wiping towel 9 is rectangle in shape.The wiping towel 9 is installed on the wiping board 2, the middleportion of which is connected to the front end of the transverse portion11 through the rotation of the shaft 3. The middle portion of the lowerend surface on the wiping board 2 is provided with the inserting portion23 extended downward, and the transverse portion 11 of the base body isprovided with a gap 13. The inserting portion 23 is inserted downwardinto the gap 13 and connected into the gap 13 through the rotation ofthe shaft 3. Both ends of the shaft 3 are supported on the walls at bothsides of the gap 31. When the wiping board 2 is rotated backward to thehorizontal state, the wiping board 2 cannot be continuously rotatedbackward after the bottom surface of the wiping board 2 is contactedwith the upper surface of the transverse portion 11. Therefore, thewiping board 2 will appear to be horizontal when the wiping board 2 isrotated to the bottom surface and suffered from the obstruction of theupper surface of the transverse portion 11.

A torsional spring 7 is installed on the shaft 3 with one end leanedagainst the bottom surface of the transverse portion 11 and the otherend inserted downward into the inserting hole 231 on the insertingportion 23, so as to keep the wiping board 2 rotated backward andcontacted with the upper surface of the transverse portion 11 to behorizontal by the action of the torsional spring 7 on the wiping board2. In this way, the scraping bar can be kept over the wiped glasssurface, leading to a more effective way to scrap and wipe the glass.When the wiping board 2 is rotated forward to the vertical state, thetorsional spring 7 can keep the wiping board 2 in the state where thewiping board 2 is stuck to the wiped glass surface.

As shown in FIG. 9, the front end of the bottom board 5 is fixed withthe scraping bar 4, and provided under the wiping board 2. When thewiping board 2 is rotated backward to the horizontal state, the scrapingbar 4 will extend forward to the front edge of the wiping board 2; thebottom board 5 can be moved forward and backward against the wipingboard 2 and can be limited under the wiping board 2 in correspondingposition. Under the circumstance that the bottom board 5 is limited to acertain position by being moved forward against the wiping board 2, thescraping bar 4 will extend the front edge of the wiping board 2 from thefront. Under the circumstance that the bottom board 5 is limited to acertain position by being moved backward against the wiping board 2, thescraping bar 4 will retract backward to the front edge of the wipingboard 2.

As shown in FIGS. 3 and 4, the wiping board 2 is provided with twoC-shaped through holes 21 with their open mouths in the same direction.The two C-shaped through holes 21 are installed on the left and rightsides respectively. The bottom board 5 is provided with twoupward-extended locating columns 51 that are connected to respectivestopping elements 6, after passing upward through the correspondingC-shaped through holes 21, to hang the bottom board 5 under the wipingboard 2. At the same time, the locating column 51 can be glided alongthe C-shaped through holes 21. The stopping element 6 can be either thelocating nut or ring. When the locating column 51 is glided in the frontgroove of the C-shaped through hole 21, the scraping bar 4 on the bottomboard 5 will extend forward the front edge of the wiping board 2. Whenthe locating column 51 is glided in the back groove of the C-shapedthrough hole 21, the scraping bar 4 on the bottom board will retractbackward to the front edge of the wiping board 2.

The upper surface of the wiping board 2 is provided with two innerrecesses 22, where the two C-shaped grooves 21 are located separately onthe bottom, and the two stopping elements 6 are located separately ineach inner recess 22.

As shown in FIGS. 1 and 7, the vertical portion 12 of the base body isfixed on the upper end of the sprayer 8. The lower end of the verticalportion 12 on the base body is provided with an annular bayonet 121which is installed on the mouth of the sprayer 8 and pressed by the lid81 for the mouth of the sprayer 8.

Use process of the invention is as follows:

As shown in FIG. 1˜4, when the scraping bar is required to be used forscraping the glass, the bottom board should be moved forward against thewiping board; the locating column 51 should be limited forward andbackward to a certain position by being glided in the front recess ofthe C-shaped through hole 21 to make the scraping bar 4 on bottom board5 extend forward the front edge of the wiping board 2; and then theglass should be water sprayed with the sprayer. The wiping board 2 willkeep rotating backward to the horizontal state under the action of thetorsional spring. The sprayer should be held with hands to scrap theglass from top to bottom. The bottom surface of the wiping board 2cannot be rotated backward due to the contact with the upper surface ofthe transverse portion 11, so that the glass can be scrapedsuccessfully.

As shown in FIGS. 6 and 7, after the scraping is finished, the wipingtowel can be used for wiping the glass. The bottom board should be movedbackward firstly against the wiping board and the locating column 51should be limited to a certain position after being glided to the backrecess of the C-shaped through hole 21. Then the scraping bar 4 shouldbe retracted backward to the front edge of the wiping board 2 with thewiping board stuck to the glass; the sprayer should be held to berotated for 90 degrees with the wiping board kept stuck to the wipedglass surface, so that the glass can be wiped successfully.

1. A windows wiper comprising: a base with a transversal arm and avertical handle, the transversal arm having a bottom surface, an uppersurface, and a front end with a shaft; a wiping board for holding awiping towel, the wiping board comprises an upper surface, a bottomsurface, and a middle portion rotatably connected to the front end ofthe transversal arm through the shaft, the wiping board has asurrounding edge; and a bottom board connected to the bottom surface ofthe wiping board, the bottom board having a front end with a scrapingedge, wherein the wiping board is able to rotate relative to the shaftuntil the upper surface of the transversal arm rests against the bottomof the wiping board and the scraping edge extends beyond the surroundingedge of the wiping board.
 2. The windows wiper of claim 1, wherein thebottom board slides forward and backward relatively to the wiping board,when the bottom board slides forward relatively to the wiping board, thescraping edge extends beyond the wiping board when the bottom boardslides backward relatively to the wiping board, the scraping edgeretracts backward hiding under the wiping board.
 3. The windows wiper ofclaim 2, wherein the wiping board is provided with two C-shaped throughholes, each C-shape through hole has an open mouth and both open mouthsface a same direction, the two C-shaped through holes are disposedparallel to each other, and the bottom board is provided with twolocating columns extending away from the bottom board, each locatingcolumn passes through a corresponding C-shaped through hole and connectswith a stopping element, the two locating columns and the correspondingstopping elements enable the bottom board to slide under the wipingboard, each locating column moves along a channel in a correspondingC-shaped through hole, when each locating column moves to a frontportion of a corresponding C-shaped through hole, the scraping edge ofthe bottom board extends forward beyond the surrounding edge of thewiping board, when each locating column moves to a rear portion of acorresponding C-shaped through hole, the scraping edge of the bottomboard will retract backward hiding under the wiping board.
 4. Thewindows wiper of claim 3, wherein the upper surface of the wiping boardis provided with two recesses, each C-shaped through hole is located inone recess, and the each stopping element is located in one recess. 5.The windows wiper of claim 1, wherein a torsional spring is disposedround the shaft, the torsional spring exerts force to rotate the wipingboard around the shaft, when the bottom surface of the wiping board isturned away from the upper surface of the transversal arm, the torsionalspring can keep the wiping board stuck to a glass surface all the time.6. The windows wiper of claim 5, wherein the bottom surface of thewiping board is provided with an inserting portion extending away fromthe wiping board, the front end of the transversal arm of the base bodydefines a gap for receiving the inserting portion, the inserting portionis pivoted to the base body through the shaft.
 7. The windows wiper ofclaim 6, wherein one end of the torsional spring rests against thebottom surface of the transversal arm and other end of the torsionalspring is inserted into an inserting hole on the inserting portion. 8.The windows wiper of claim 1, wherein a wiping towel covers the wipingboard.
 9. The windows wiper of claim 1, wherein the base body furthercomprises a vertical portion for engaging an external sprayer.
 10. Thewindows wiper of claim 9, wherein the vertical portion has a bottom endwith an annular locating hole which is installed around an opening ofthe sprayer and limited by a lid on the opening of the sprayer.